Abstract: A method of processing manganese ore by adding the ore to an aqueous solution of acid and H.sub.2 O.sub.2 to form a leach pulp. The leach pulp is agitated for a predetermined time period at predetermined temperatures. The leach pulp is then separated into a solid fraction and a liquid fraction containing solubilized metals. The solubilized metals are then recovered from the liquid fraction.

Abstract: Disclosed is a system for the precision, high speed, non-contacting measurement of the shapes of reflective surfaces. This system consists of multiple laser fringe pattern transmitters, a random access image dissector camera or receiver, and a computer analysis system. Three laser transmitters project three fringe patterns onto a specimen surface such that the coordinates of the surface of the specimen can be obtained with an image dissector camera, imaged on the specimen, by separate measurement of the reflection by the surface from each transmitter. The computer analysis system decides which picture elements (pixels) are of interest, directs the receiver to "look at" those pixels, directs a digitizer to interrogate alternately the input numbers that are proportional to the coordinates of the specimen point.

Abstract: Disclosed is a system for the precision, high speed, non-contacting measurement of the shapes of reflective surfaces. This system consists of multiple laser fringe pattern transmitters, a random access image dissector camera or receiver, and a computer analysis system. Three laser transmitters project three fringe patterns onto a specimen surface such that the coordinates of the surface of the specimen can be obtained with an image dissector camera, imaged on the specimen, by separate measurement of the reflection by the surface from each transmitter. The computer analysis system decides which picture elements (pixels) are of interest, directs the receiver to "look at" those pixels, directs a digitizer to interrogate alternately the input numbers that are proportional to the coordinates of the specimen point. In a similar manner the shape of the entire specimen surface can be characterized and stored in computer memory.

Abstract: Apparatus for directly measuring the quantity .sqroot..rho.ck of a test specimen such as a wind tunnel model where .rho. is the density, c is the specific heat and k is the thermal conductivity of the specimen. The test specimen and a reference specimen are simultaneously subjected to the heat from a heat source. A thermocouple is attached to the reference specimen for producing a first electrical analog signal proportional to the heat rate Q that the test specimen is subjected to and an infrared radiometer that is aimed at the test specimen produces a second electrical analog signal proportional to the surface temperature T of the test specimen. An analog-to-digital converter converts the first and second electrical analog signals to digital signals. These digital signals are applied to a computer for determining the quantity .sqroot..rho.ck by computing the quantity ##EQU1## WHERE T.sub.